Real Madrid and Barcelona are definitely still in the running and have been fighting each other forever, but i don't feel the same way about Atletico Madrid as they still seem very inexperienced. Look how they got eliminated from the Champions League, they were foolish
This season it is very difficult to predict who will win the Liga, we have two very strong dominant teams, and it is also evident from the results in the Champions League!
Yes, since ancient times, Real Madrid and Barcelona have always competed very tightly to become champions in Laliga. So there is no other team in Laliga that can really compete with both teams consistently. For example, Girona, last season Girona was a competitor for Real Madrid and Barcelona to become champions in Laliga. But the result was that Girona failed and Real Madrid became the champion. In addition, this season Girona seems to have a bad performance and the result is that it can no longer compete with Real Madrid or Barcelona. So with this evidence, it is true that there is no other team besides Barcelona and Real Madrid that always competes for the Laliga trophy consistently every season.
Likewise with Atletico Madrid, if you look at its background, Atletico Madrid is indeed a big team in Laliga and there are many great players owned by Atletico Madrid. But even so, Atletico Madrid also in reality cannot compete well in Laliga. Although in every season Atletico Madrid is always in the top 3, but to be able to break through to rank 2 or 1 in Laliga is very difficult for Atletico Madrid. So if you say that Atletico Madrid's is a strong competitor for Real Madrid and Barcelona, I think that is an incorrect assumption. Because the proof is that Atletico Madrid has a very hard time finishing at the top of Laliga. Maybe it would be more appropriate if Atletico Madrid was said to be a team that is always able to finish in 3rd place in Laliga.